Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability
Published Jul 22, 2020 ·Due May 3, 2022
7.5
HIGHCVSS 3.1
EPSS 99.99%
Description
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<9.10.1.42
- Version unspecifiedStatusaffectedConstraints<9.13.1.10
- Version unspecifiedStatusaffectedConstraints<9.14.1.10
- Version unspecifiedStatusaffectedConstraints<9.6.4.42
- Version unspecifiedStatusaffectedConstraints<9.8.4.20
- Version unspecifiedStatusaffectedConstraints<9.9.2.74
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | n/a |
|
Configuration 1
- ≥ 9.6 · < 9.6.4.42
- ≥ 9.8 · < 9.8.4.20
- ≥ 9.9 · < 9.9.2.74
- ≥ 9.10 · < 9.10.1.42
- ≥ 9.12 · < 9.12.3.12
- ≥ 9.13 · < 9.13.1.10
- ≥ 9.14 · < 9.14.1.10
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 2
- ≥ 6.2.3 · < 6.2.3.16
- ≥ 6.3.0 · < 6.3.0.6
- ≥ 6.4.0 · < 6.4.0.10
- ≥ 6.5.0 · < 6.5.0.5
- ≥ 6.6.0 · < 6.6.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
Date Added
Nov 3, 2021
Patch Due
May 3, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Feb 4, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 99.99% (0.99992) | 99.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 99.99% (0.99992) | 99.99th | v5 (v2026.06.15) |
| Mar 17, 2025 | 94.45% (0.94452) | 99.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.50% (0.97496) | 99.98th | v3 (v2023.03.01) |
| Jul 15, 2024 | 97.45% (0.97446) | 99.95th | v3 (v2023.03.01) |
| Jun 28, 2024 | 97.45% (0.97452) | 99.95th | v3 (v2023.03.01) |
| May 26, 2024 | 97.44% (0.97435) | 99.94th | v3 (v2023.03.01) |
| May 11, 2024 | 97.48% (0.97484) | 99.97th | v3 (v2023.03.01) |
| Jan 30, 2024 | 97.51% (0.97508) | 99.98th | v3 (v2023.03.01) |
| Nov 25, 2023 | 97.53% (0.97529) | 99.99th | v3 (v2023.03.01) |
| Nov 8, 2023 | 97.54% (0.97539) | 99.99th | v3 (v2023.03.01) |
| Sep 23, 2023 | 97.55% (0.97545) | 99.99th | v3 (v2023.03.01) |
| Aug 9, 2023 | 97.53% (0.97534) | 99.98th | v3 (v2023.03.01) |
| Jul 8, 2023 | 97.55% (0.97548) | 99.99th | v3 (v2023.03.01) |
| Mar 12, 2023 | 97.56% (0.97564) | 100.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.58% (0.97575) | 100.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 81.97% (0.81970) | 99.55th | v2 (v2022.01.01) |
| Feb 4, 2022 | 81.97% (0.81970) | 99.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.04% (0.07045) | 83.72th | v1 |
| Jan 6, 2022 | 7.04% (0.07045) | 83.57th | v1 |
| Sep 1, 2021 | 7.04% (0.07045) | 91.20th | v1 |
| Apr 14, 2021 | 7.04% (0.07045) | 0.00th | v1 |
References (6)
- http://packetstormsecurity.com/files/158646/Cisco-ASA-FTD-Remote-File-Disclosure.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/158647/Cisco-Adaptive-Security-Appliance-Software-9.11-Local-File-Inclusion.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/159523/Cisco-ASA-FTD-9.6.4.42-Path-Traversal.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/160497/Cisco-ASA-9.14.1.10-FTD-6.6.0.1-Path-Traversal.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86 vendor-advisoryx_refsource_CISCOVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3452 government-resourceUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/158646/Cisco-ASA-FTD-Remote-File-Disclosure.html | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| http://packetstormsecurity.com/files/158647/Cisco-Adaptive-Security-Appliance-Software-9.11-Local-File-Inclusion.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| http://packetstormsecurity.com/files/159523/Cisco-ASA-FTD-9.6.4.42-Path-Traversal.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| http://packetstormsecurity.com/files/160497/Cisco-ASA-9.14.1.10-FTD-6.6.0.1-Path-Traversal.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86 | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3452 | government-resourceUS Government Resource |
Change history (0)
No recorded changes yet.